Abstract: A foldable handle includes a connection section and a grip section. A recess is defined in the connection section and a function part is located in the recess. A restriction unit extends through the connection section to pivotably connect the function part to the connection section. The restriction unit is operated to restrict the function part to be co-axial with the handle, or to restrict the function part to be an angle relative to the handle. The function part includes a neck received in the recess so as to make the foldable handle be compact for convenience of storage.

Abstract: A driving circuit including an output circuit, a pull-down module, conductive wires, at least one first signal line, and a buffer layer is provided. The conductive wires are electrically connected between the output circuit and the pull-down module. The output circuit and the pull-down module are electrically coupled to a driving control signal through the first signal line. A first overlapping region is located between the first signal line and a portion of the conductive wires. The buffer layer is disposed between the first signal line and the portion of the conductive wires. The buffer layer includes an overlapping portion and an extending portion. The overlapping portion is at least disposed in the first overlapping region. The extending portion is disposed outside the overlapping portion. A thickness of the overlapping portion is greater than a thickness of the extending portion. A display panel is also provided.

Abstract: A ratchet wheel includes an outer surface multiple ratchet teeth formed thereon, an inner surface having a polygonal hole defined therein, a first end and a second end. An electro-plating process is applied to the ratchet wheel to form a protective layer plated on the whole ratchet wheel. The protective layer is a durable and high stiffness metal layer or an alloy layer. An isolation layer is coated to the outer surface of the ratchet wheel, and a recognition layer is formed on the protective layer on the inner surface, the first end and the second end of the ratchet wheel.

Abstract: A ratchet wheel includes an outer surface multiple ratchet teeth formed thereon, an inner surface having a polygonal hole defined therein, a first end and a second end. An electro-plating process is applied to the ratchet wheel to form a protective layer plated on the whole ratchet wheel. The protective layer is a durable and high stiffness metal layer or an alloy layer. An isolation layer is coated to the outer surface of the ratchet wheel, and a recognition layer is formed on the protective layer on the inner surface, the first end and the second end of the ratchet wheel.

Abstract: A quick release device of a ratchet wrench includes a rotary ring rotatably mounted to a positioning member on the head of the wrench. When the rotary ring is rotated, a movable plate is driven to a positioning position or a releasing position. When the movable plate is located at the engaging position, a contact portion of the movable plate is engaged with one of multiple recessed portions of the rotary ring, and an engaging portion of the movable plate is engaged with a groove of a socket that is connected to the ratchet wheel of the wrench. When the movable plate is located at the releasing position, the contact portion contacts with one of the protrusions of the rotary ring, and the engaging portion is disengaged from the groove of the socket so that the socket can be quickly removed from the wrench.

Abstract: A connection device of a ratchet wrench includes a connection portion extending from the head of a ratchet wrench and having a receiving hole. A tool part includes a ball head and a driving portion which is connected to the ball head by a neck. The ball head includes multiple curved faces, and a ridge is formed between any two adjacent curved faces. A clutch device is mounted to the connection portion to secure or release the ball head of the tool part relative to the receiving hole of the connection portion. The ball head of the tool part allows the tool part to be tilt relative to the head of the wrench.

Abstract: A display panel including a pixel array substrate, an opposite substrate, and a display media is provided. The pixel array substrate includes a substrate, a plurality of scan lines, a plurality of data lines, a plurality of pixel units, and a gate driving circuit. The gate driving circuit including a plurality of first signal lines, a plurality of second signal lines, a plurality of dummy signal lines, and a plurality of contact structures is disposed in a peripheral region of the substrate. Each of the second signal lines is electrically connected to one corresponding first signal line. Each of the dummy signal lines is electrically connected to one corresponding second signal line via one corresponding contact structure. Each of the first signal lines is electrically connected to the corresponding second signal line via one corresponding contact structure.

Abstract: A ratchet wrench includes a head in which a driving wheel and a pawl are received therein. The pawl includes teeth to be engaged with the driving wheel. A switch device includes a shank, a spring and a rod. The shank is rotatably received in a receiving hole in the head, and has a notch in which the spring and the rod are received. The rod is pushed by the spring and movably engaged with the recess in the rear side of the pawl. A protrusion is formed on the shank, and includes two shoulders formed on two ends thereof. The recess of the pawl includes contact ends. When the shank is pivoted, one of the two shoulders applies a force to the inner wall of the recess and one of the two contact ends to move the pawl to be engaged with the driving wheel.

Abstract: A display unit includes a plate and a ring. The ring has a through hole with which a first end of a security member is engaged. The second end of the security member extends beyond the through hole. The security member is pivotable relative to the through hole. An insertion hole is defined in the second end of the security member so as to receive a hand tool therein. The security member includes an opening communicating with the insertion hole. An L-shaped restriction member is connected to a slit defined in the first end and the outside surface of the security member. The restriction member has an engaging portion which extends through the opening and inserted into a gap between a bead and a reception hole for receiving the bead of the hand tool to prevent the hand tool from being separating from the ring.

Abstract: A ratchet wrench includes a head with a ratchet wheel rotatably received in a through hole defined through the head. A lateral hole is defined laterally through the wall of the head and communicates with the through hole. A contact portion protrudes inwardly from the inner periphery of the lateral hole so as to reduce the diameter of one end of the lateral hole. A pawl, a spring and a contact member are received in the lateral hole. The spring is biased between the pawl and the contact member, and the pawl is engaged with the ratchet wheel. The contact member is a disk and stopped by the contact portion so that the pawl, the spring and the contact member do not drop from the lateral hole without using a bolt.

Abstract: A wrench includes a handle with a recess that opens through a periphery and an end face of the handle. An extension unit is pivotably connected to the recess by a pivot. The extension unit includes two bars and each bar has a clamp portion and an insertion portion. The insertion portion is pivotably connected to the recess by the pivot, and the clamp portions are pivotably connected to a driving head therebetween. The extension unit is pivotable relative to the handle so that the wrench is used in different ways.

Abstract: A chuck assembly includes a chuck having a cross-shaped installation hole defined therethrough. A toothed disk is connected to the chuck and exposed from the outer periphery of the chuck. A driving unit includes a shaft and a gear which is mounted to the shaft. The driving unit is installed in the installation hole. The shaft includes two threaded sections respectively formed on two ends thereof. Two pawls each have threaded hole which is threadedly connected to the threaded section of the shaft corresponding thereto. When the gear is rotated to rotate the shaft, the two threaded sections are rotated to move the two pawls to move toward each other or away from each other.

Abstract: A driving circuit including an output circuit, a pull-down module, conductive wires, at least one first signal line, and a buffer layer is provided. The conductive wires are electrically connected between the output circuit and the pull-down module. The output circuit and the pull-down module are electrically coupled to a driving control signal through the first signal line. A first overlapping region is located between the first signal line and a portion of the conductive wires. The buffer layer is disposed between the first signal line and the portion of the conductive wires. The buffer layer includes an overlapping portion and an extending portion. The overlapping portion is at least disposed in the first overlapping region. The extending portion is disposed outside the overlapping portion. A thickness of the overlapping portion is greater than a thickness of the extending portion. A display panel is also provided.

Abstract: A display unit includes a plate and a ring. The ring has a through hole with which a first end of a security member is engaged. The second end of the security member extends beyond the through hole. The security member is pivotable relative to the through hole. An insertion hole is defined in the second end of the security member so as to receive a hand tool therein. The security member includes an opening communicating with the insertion hole. An L-shaped restriction member is connected to a slit defined in the first end and the outside surface of the security member. The restriction member has an engaging portion which extends through the opening and inserted into a gap between a bead and a reception hole for receiving the bead of the hand tool to prevent the hand tool from being separating from the ring.

Abstract: A torque wrench includes a main tube having a driving head and a receiving hole on two ends thereof. A ratchet tube is inserted into receiving hole and has multiple elongate positioning recesses. A passage is defined axially through the ratchet tube. An operation tube is mounted to the ratchet tube and has a driving section and a holding section, and a connection hole is defined through the driving section and the holding section. The driving section has an engaging hole in which a bead is received. A torque unit is received in the receiving hole, the passage and the connection hole. The torque is set by rotating operation tube. A control tube is mounted to the driving section and has a bolt movable in an L-shaped slot to release and restrict movement of the control tube relative to the operation tube.

Abstract: A socket wrench includes a wrench body, a ratchet wheel and a positioning ring. The ratchet wheel has a driving hole and a cylindrical flange extending on one side of the wrench body. The cylindrical flange has at least one aperture defined through the outer periphery thereof and communicating with the driving hole. The positioning ring is an O-shaped ring and surrounded the outer periphery of the cylindrical flange, and has a central bore. At least one protrusion radially protruded from the inner wall of the central bore of the positioning ring. The protrusion is projected from the wall of the driving hole through the aperture to position a socket. The positioning ring is moved a distance along the radial direction relative to the ratchet wheel by being pushed toward the at least one protrusion to completely retract the at least one protrusion into the aperture to release the socket.

Abstract: A torque wrench includes a main tube having a driving head and a receiving hole on two ends thereof. A ratchet tube is inserted into receiving hole and has multiple elongate positioning recesses. A passage is defined axially through the ratchet tube. An operation tube is mounted to the ratchet tube and has a driving section and a holding section, and a connection hole is defined through the driving section and the holding section. The driving section has an engaging hole in which a bead is received. A torque unit is received in the receiving hole, the passage and the connection hole. The torque is set by rotating operation tube. A control tube is mounted to the driving section and has a bolt movable in an L-shaped slot to release and restrict movement of the control tube relative to the operation tube.